Persistent Slabs
- Hochgebirge
- Waldgrenze
- Unterhalb der Waldgrenze
- Wahrscheinlichkeit
- Unlikely
- Größe
- 2
The persistent weak layer (PWL) making up most of the snowpack on the north side of the compass continues to weaken. This structure is not going to be able to support much in the way of new snow or wind loading. Anywhere with old snow will be suspect once the weather changes and a slab builds over this weak layer. Take a look around and make note of what slopes, aspects, and elevations are and are not holding snow so you'll have an idea of locations to avoid once we get our next storm. Weak snow is also forming on the surface and you can learn more about surface hoar HERE.
Photo of weak surface snow (Grainger)